<template>
  <div class="component-upload-image-card">
    <!-- <template v-if="fileList.length > 0">
      <el-image
        v-for="item in fileList"
        :key="item.id"
        :src="item.url"
      ></el-image>
    </template> -->

    <el-upload
      list-type="picture-card"
      :action="uploadImgUrl"
      :on-success="handleUploadSuccess"
      :before-upload="handleBeforeUpload"
      :on-error="handleUploadError"
      :on-exceed="handleExceed"
      name="file"
      :headers="headers"
      :file-list="fileList"
      :limit="10"
    >
      <i slot="default" class="el-icon-plus"></i>
      <div slot="file" slot-scope="{ file }">
        <img class="el-upload-list__item-thumbnail" :src="file.url" alt="" />
        <span class="el-upload-list__item-actions">
          <span
            class="el-upload-list__item-preview"
            @click="handlePictureCardPreview(file)"
          >
            <i class="el-icon-zoom-in"></i>
          </span>
          <span class="el-upload-list__item-delete" @click="handleRemove(file)">
            <i class="el-icon-delete"></i>
          </span>
        </span>
      </div>
    </el-upload>
    <el-dialog :visible.sync="dialogVisible">
      <img width="100%" :src="dialogImageUrl" alt="" />
    </el-dialog>
  </div>
</template>

<script>
import { getToken } from "@/utils/auth";

export default {
  props: {
    value: [String, Object, Array],
    // 图片数量限制
    limit: {
      type: Number,
      default: 5,
    },
    // 大小限制(MB)
    fileSize: {
      type: Number,
      default: 5,
    },
    // 文件类型, 例如['png', 'jpg', 'jpeg']
    fileType: {
      type: Array,
      default: () => ["png", "jpg", "jpeg", "ppt", "doc", "docx"],
    },
    // 是否显示提示
    isShowTip: {
      type: Boolean,
      default: true,
    },
    fileName: {
      type: String,
      default: "图片",
    },
    typeName: {
      type: String,
      default: "",
    },
  },
  data() {
    return {
      number: 0,
      uploadList: [],
      dialogImageUrl: "",
      dialogVisible: false,
      hideUpload: false,
      baseUrl: process.env.VUE_APP_BASE_API,
      uploadImgUrl: process.env.VUE_APP_BASE_API + "/archive/annex/upload", // 上传的图片服务器地址
      headers: {
        Authorization: getToken(),
      },
      fileList: [],
    };
  },
  watch: {},
  computed: {
    // 是否显示提示
    showTip() {
      return this.isShowTip && (this.fileType || this.fileSize);
    },
  },
  methods: {
    // 删除图片
    handleRemove(file, fileList) {
      const findex = this.fileList.map((f) => f.name).indexOf(file.name);
      if (findex > -1) {
        this.fileList.splice(findex, 1);
        //this.$emit("input", this.listToString(this.fileList));
      }
    },
    // 上传成功回调
    handleUploadSuccess(res, file) {
      console.log(file);
      this.uploadList.push({
        name: this.fileName,
        url: res.data.url,
        saveFilePath: res.data.saveFilePath,
      });
      this.fileList = this.uploadList;
      console.log(this.fileList);
      let uploadList = [];
      this.uploadList.forEach((item) => {
        let obj = {
          filePath: item.saveFilePath,
          fileShowPath: item.url,
        };
        uploadList.push(obj);
      });
      console.log(uploadList);
      this.$emit("handleUploadImage", uploadList);

      this.uploadList = [];
      //this.fileList = [];
      this.$message.success("上传成功");
      this.$modal.closeLoading();
    },
    // 上传前loading加载
    handleBeforeUpload(file) {
      //let isImg = false;
      // if (this.fileType.length) {
      //   let fileExtension = "";
      //   if (file.name.lastIndexOf(".") > -1) {
      //     fileExtension = file.name.slice(file.name.lastIndexOf(".") + 1);
      //   }
      //   isImg = this.fileType.some((type) => {
      //     if (file.type.indexOf(type) > -1) return true;
      //     if (fileExtension && fileExtension.indexOf(type) > -1) return true;
      //     return false;
      //   });
      // } else {
      //   isImg = file.type.indexOf("image") > -1;
      // }

      // if (!isImg) {
      //   this.$modal.msgError(
      //     `文件格式不正确, 请上传${this.fileType.join("/")}图片格式文件!`
      //   );
      //   return false;
      // }
      if (this.fileSize) {
        const isLt = file.size / 1024 / 1024 < this.fileSize;
        if (!isLt) {
          this.$modal.msgError(`上传文件大小不能超过 ${this.fileSize} MB!`);
          return false;
        }
      }
      this.$modal.loading("正在上传文件，请稍候...");
      this.number++;
    },
    // 文件个数超出
    handleExceed() {
      this.$modal.msgError(`上传文件数量不能超过 ${this.limit} 个!`);
    },
    // 上传失败
    handleUploadError() {
      this.$modal.msgError("上传文件失败，请重试");
      this.$modal.closeLoading();
    },
    // 预览
    handlePictureCardPreview(file) {
      this.dialogImageUrl = file.url;
      this.dialogVisible = true;
    },
    // 对象转成指定字符串分隔
    listToString(list, separator) {
      let strs = "";
      separator = separator || ",";
      for (let i in list) {
        strs += list[i].url.replace(this.baseUrl, "") + separator;
      }
      return strs != "" ? strs.substr(0, strs.length - 1) : "";
    },
  },
};
</script>
<style scoped lang="scss">
// .el-upload--picture-card 控制加号部分
::v-deep.hide .el-upload--picture-card {
  display: none;
}
// 去掉动画效果
::v-deep .el-list-enter-active,
::v-deep .el-list-leave-active {
  transition: all 0s;
}

::v-deep .el-list-enter,
.el-list-leave-active {
  opacity: 0;
  transform: translateY(0);
}
</style>
<style lang="scss">
.component-upload-image-card {
  .el-upload {
    width: 148px;
  }
  .el-upload-dragger {
    width: 100%;
    height: 148px;
  }
  .el-upload--picture-card {
    height: 148px;
    line-height: 148px;
  }
}
</style>

